PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19666080-8 2009 The bax/bcl-2 mRNA ratio increased 12 and 24 h following R-SO and 120 h following styrene administration. Styrene 82-89 BCL2-associated X protein Mus musculus 4-7